Can girls still grow taller after puberty? heard that some girls still increase height after 20 yr old.

Growth: Girls usually start slowing down around 18-19 years there may be a few instances till the age 20 yr. Puberty is much earlier - so yes they can still grow.

Depends on variables: The growth centers of your bones determine how tall you can grow.Most growth centers will close at 16-17 years of age in girls. After that happens, you can not grow taller. If your growth centers are open, a balanced diet/rest ; healthy physical activity will support good growth.There are no special diet or exercises that make you taller.

More to come, likely: Most people continue to grow through their mid to late adolescence, and some can continue to grow into their early 20's, but the is unusual. Likely you have a ways to go still before you stop growing.